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Table 5-1. User-defined character design grids
Draft
Letter Quality
Proportional
Draft mode characters
As you have seen, draft characters are designed on a grid
which is 24 dots high by 9 dots wide (plus up to three columns of
dots for space between characters). User-defined draft characters
print at the same high speed as normal draft characters, even
though they may print with more dots and may even be de-
signed for proportional spacing.
There is, however, one restriction on designing characters for
draft printing. Dots in the same row may not print in adjacent
columns. That is, there must be an empty dot position to the left
and to the right of each dot that prints (the space on either side of
the character counts as an empty dot position). Therefore, in a
character grid that is nine dots wide, a maximum of five dots will
print in any row.
For vertical spacing, there is no such restriction. You can print
a solid column of 24 dots if you wish.
Letter quality characters
If you select letter quality printing with the <ESC> "x" 1
command, you can design your user-defined characters on a grid
which is 24 dots high by 15 dots wide. Each character can be as
wide as 18 dots, including space on either side of the character.
The dot columns are spaced closer together horizontally than
draft style dot columns (the horizontal dot spacing is l/180-inch
when printing pica width-as opposed to l/120-inch for draft
characters).
60
dl
(maximum)
9
15
37
dO+d1+d2
(maximum)
12
18
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